{"id":"UBUNTU-CVE-2018-21030","details":"Jupyter Notebook before 5.5.0 does not use a CSP header to treat served files as belonging to a separate origin. Thus, for example, an XSS payload can be placed in an SVG document.","modified":"2026-01-30T02:29:17.686946Z","published":"2019-10-31T15:15:00Z","related":["USN-5585-1"],"upstream":["CVE-2018-21030"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-21030"},{"type":"REPORT","url":"https://github.com/jupyter/notebook/pull/3341"},{"type":"REPORT","url":"https://github.com/jupyter/notebook/releases/tag/5.5.0"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5585-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-21030"}],"affected":[{"package":{"name":"jupyter-notebook","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/jupyter-notebook@5.2.2-1ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.2-1ubuntu0.1"}]}],"versions":["4.2.3-4","5.1.0-2","5.2.1-2","5.2.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.2.2-1ubuntu0.1","binary_name":"jupyter-notebook"},{"binary_version":"5.2.2-1ubuntu0.1","binary_name":"python-notebook"},{"binary_version":"5.2.2-1ubuntu0.1","binary_name":"python3-notebook"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-21030.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}